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Finding the Fourth Proportional to 181.23, 270.45 and 154.23

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Solution

The fourth proportional to 181.23, 270.45 and 154.23 is: 230.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    181.23 : 270.45 = 154.23 : x
  2. Step 2: Convert to fraction form
    181.23/270.45 = 154.23/x
  3. Step 3: Cross multiply
    181.23x = 270.45 × 154.23
  4. Step 4: Simplify right side
    181.23x = 41,711.50
  5. Step 5: Solve for x
    x = 41,711.50/181.23
  6. Step 6: Final answer
    x = 230.16

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.